in boston. reporting live in san francisco, deborah villalon, ktvu channel 2 news. >>> president obama called the deadly bombings an act of terror today. it's a phrase he avoided yet when the investigation was still in flux. >> this is a cowardly act, given what we have learned, the defense department is calls it an act of terror. >> reporter: the president is scheduled to travel to boston on thursday and attend an interfaith service as police and other law enforcement remain on high alert. >>> the stories of those who died are coming to light. those killed include an 8-year- old, martin richards. he was a spectator at the race along with his parents, father and sister. also killed crystal campbell of arlington. she's being remembered for her generous spirit. crystal had been going to watch the marathon since she was a little girl. the third victim was a gradual student. she was from china. the consulate refused to release her name at the request of her family. crystal's mother struggled with her emotions as she remembered a woman who was full of life. >> she was always smiling. i can'